Here are a few pictures of my 82, 383 crossfire engine, some old, some new and the way I did things and hope this helps others out. The close-up engine type picture showing the external regulator which is an Aeromotive universal vacuum referenced regulator and it’s set for 30psi at WOT with vacuum removed. Below the first iteration of the bent tubing hard-line install and under the fuel pressure gauge closest to the motor, is where I mounted the “Y” block and the input to that is from the bottom. The line coming out of the fuel pressure regulator on the bottom is the return line. I recently added all new custom made to fit MSD 8.5mm wires and the new complete DUI distributor is finally installed.
Starting with the third engine picture, which is the latest version of my fuel system as of August 2021, you can compare the differences. The old hard-lines were causing issues with my new tune now in development. I had to install a rubber nylon braided fuel line from Vibrant along with their black press on fittings to make it all work. My new goal is to achieve a 1/4 mile ET of at least 11.99. The car already runs mid 12s consistently. I hope to have the new tune dialed in later this winter and ready for the track. The fuel system works much better now and the issue I was having is completely gone now with the new lines. I actually like the new lines more than the old silver hard-lines. Send me your opinion if you want to or you can ask any questions about my setup. I will post more related pictures as time goes by.